On June 1, 1970, the Soyuz-9 spacecraft was launched with a crew of two cosmonauts: Andrian Nikolayev and Vitaly Sevastyanov. This flight set a record for autonomous flight duration (without docking with the orbital station) at 18 days, a record that remains unbroken to this day. The state of health of the crew members upon their return to Earth gravity was close to critical.
Their bodies, adapted to microgravity, lost a lot of muscle mass. Their bones lost a lot of calcium. They became dehydrated as a result of the body releasing excess fluid in weightless conditions.
It became clear that long flights require an extensive regimen of preventive health care, both in space and on the Earth. Today, on board the ISS, cosmonauts spend two hours every day in physical exercise.
On the Earth, they regularly engage in physical training under the guidance of professional instructors. These professionals developed a comprehensive set of tests that consist of a series of exercises, allowing them to assess qualities such as endurance, strength, speed, agility and coordination. The results of this test help to draw conclusions about the physical fitness of a person flying into space.
If you are ready to test your level of physical fitness against space standards, we can help you.